commit bc9460900d1c5cb541e88c4c39cfa2fb9e8d28d8
from: Omar Polo <op@omarpolo.com>
date: Sun Feb 26 20:30:37 2023 UTC

retry on sio_revents failure due to EAGAIN

I've noticed that often during the suspend/resume cycle amused could die
due to a "sndio hang-up" caused by an EAGAIN.  This should prevent that
and make sure we retry the operation.

commit - 15decef243429c2973b338ff3b01f95ac90dd555
commit + bc9460900d1c5cb541e88c4c39cfa2fb9e8d28d8
blob - b1083ef3705605d82c0c9b4467fb233180d2138e
blob + 3515cff5b905accb295d7b7c3e37cf0bcb6a37af
--- player.c
+++ player.c
@@ -323,8 +323,11 @@ play(const void *buf, size_t len, int64_t *s)
 		}
 
 		revents = sio_revents(hdl, player_pfds + 1);
-		if (revents & POLLHUP)
+		if (revents & POLLHUP) {
+			if (errno == EAGAIN)
+				continue;
 			fatal("sndio hang-up");
+		}
 		if (revents & POLLOUT) {
 			w = sio_write(hdl, buf, len);
 			len -= w;